In my opinion trance music is the best kind for aerobics workout. But I couldn't limit myself there. 4D Aerobics High 5 (4DAH)  is quite pop, 4DAH 10 is pure 80s-90s while 4DAH 11 is pure rock. Of course it doesn't mean that the rest of cds are homogeneously trance, but, yes, trance is dominant and I have no regrets about it.